//

// Created by LE, Duc Anh on 8/18/15.

//

#include "ParserSingle.h"

#include "Exceptions/ParserException.h"

#include "Common/IDefines.h"

namespace CLDEParser {

SPtrSyntaxModel ParserSingle::Parse(SPtrTokenVector const &sptrTokens) const {

auto iterator = sptrTokens.cbegin();

try {

// Empty string returns a nullptr entity

if(iterator == sptrTokens.cend()){

return _sptrDerivative->SyntaxModel();

}

// Process

if (!_sptrDerivative->Derive(iterator)) {

int code = (int) Exceptions::ParserException::ParserExceptionCode::UnmatchedToken;

throw Exceptions::ParserException{code, iterator};

}

} catch (Exceptions::ParserException &ex) {

std::string _description;

_description.reserve(Common::BufferSize::EIGHTY);

auto exIter = sptrTokens.cbegin();

for (; exIter != ex.Iterator(); ++exIter) {

_description += (*exIter)->CopyToString();

}

_description += (*(ex.Iterator()))->CopyToString();

throw Exceptions::ParserException{(int) ex.Code(), iterator, _description};

}

return _sptrDerivative->SyntaxModel();

}

}